dexter



(No Model.) Y P 2 Sheets-Sheet A2.

T. C. DEXTERi PAPER REGISTBRING MEGHANISM.

No. 583,281. Patented May 25, 1897.

ITNE sES INVENTOR:

ATTORNEY UNITED STATES PATENT OEEICE.

TALBOT C. DEX'TER, OF PEARL RIVER, NEV YORK, ASSIGNOR TO THE DEXTER FOLDER COMPANY, OF NEIV YORK, N. Y.

PAPER-REGISTERING IVIECHANISIVI.

SPECIFICATION forming part of Letters Patent No. 583,281, dated May 25, 1897. Application led August 24, 1896. Serial No. 603,693. (No model.)

.T all whom t may concern:

Beit known that I, TALBOT C. DEXTER, of

" Pearl River, in the county of Rockland, in

the State of New York, have invented new and useful Improvements in Paper-Registerin g Mechanisms, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to paper-registering devices employed on machines designed to either fold or rule or otherwise operate on paper fed into the machine by traveling endless tapes.

The object of the invention is to provide efficient and reliable means for properly registering or alining the delivered sheet preparatory to being operated on by the machine; and to that end the invention consists, essentially, in the combination with said machine of a registering instrument located adjacent to the paper-receiving end of the machine and drawing the delivered sheet back to its required registering position, as hereinafter more fully described, and summed up in the claims.

Referring to the annexed drawings, Figure l is a plan view of a paper-folding machine provided with my improved paper-registering devices. Fig. 2 is a side elevation of the same. Fig. 3 is an enlarged side View of the registering instrument with a portion of the subjacent paper-supporting bar broken away to better illustrate the foot of said instrument, and Fig. 4L is a transverse section on line X X in Fig. 3.

Similar letters of reference indicate corresponding parts.

A denotes the main supporting-.frame of the paper-folding machine.

B B represent the paper-folding rollers; O, the blade which tucks the paper between the folding -rollers; a a, the traveling endless tapes which extend from the feeding or paperreceiving end of the machine to the foldingrollers and convey the sheets of paper into the machine, and D represents the first foldguide or end gage which arrests the movement of the paper delivered by the aforesaid tapes. All of said parts are arranged and operate in the usual and well-known manner.

The paper thus arrested usually. has to be registered or alined before it is introduced into the bite of the folding-rollers, and this registering has heretofore been effected by instruments located within the space between the end gage D and folding-rollers B B. The registering of the paper at said locality on the machine is sometimes difficult to accomplish with certain qualities of paper, owing chiefly to the continuous forward propelling force exerted on the paper by the rapidly-traveling tapes a a. To overcome this, I locate the registering instrument adjacent to the feeding or paper-receiving end of the machine, so as to draw back the delivered sheet to its requisite registering position, in which operation the propelling force of the tapes on the advance and main portion of the paper while drawn in the opposite direction by the registering instrument causes the registered paper to lie smoothly upon the machine.

Although I do not limit myself to any speciic construction of the paper-registering instrument, yet I prefer to construct it so as to enable it to engage the rear edge of the slit made in the sheet for that purpose. I employ two of said registering instruments, disposed, respectively, at opposite sides of the longitudinal central line of the machine, as

shown in Fig. I of the drawings. For supporting these instruments so as to adapt them to operate on sheets of paper of different lengths and Widths I secure cross-bars b b to suitable standards b/ and b2, mounted on the frame A at opposite sides of the machine. Said cross-bars are located one near the folding-rollers B B and the other at or near the paper-receiving end of the machine. To said cross-bars are attached the ends of longitudinal bars c c, which arel parallel with the tapes a a, and are adapted to be shifted laterally and clamped adjustably on the crossbars to carry the registering instruments in lines directly over the slits made in the paper for the purpose of registering said paper. Upon each of the said longitudinal bars is mounted a sleeve c', which embraces the bar and is slitted longitudinally to render it contractible, and is provided with longitudinal lian ges at the edges of the slit, through which IOO flanges pass bolts, by means of which the sleeve can be contracted so as to subject it to sufficient friction on the rod to retard longitudinal movement of the sleeve for the purpose hereinafter explained. To this sleeve is pivoted the registeringinstrument proper, consisting of a finger d, fastened to an axle (Z',which is jonrnalcd in bearings on the sleeve. Said linger extends downward from the axle and has its foot or lower end provided'with a spur e, which projects rearward or toward the paper-receiving end of the machine, and with a forwardly and upwardly curved shoe e', which latter guards against the catching on the paper and tearing it during the forward movement of the iin ger. This linger or registering instrument receives oscillatory and longitudinal reciprocating motion by means of a crank f, attached to the axle of the finger and connected to the end of a rod g, which is parallel with the longitudinal bar c, and is connected to one of the arms h, fastened t-o a rock-shaft h, which is actuated by an arm i, fastened to the end of said shaft and connected to the end of apitman .7', which depends from said arm and is bifnrcated at its lower end, and straddles thereby a rotary shaft Z, to which is secured a cam Z. To the pitln an is pivoted a rollern, which rides upon the said cam and causes the pitman to beintermittently lifted by the cam. A sp1-ingu and the weight of the pitman depress the latter, and thus thc pitman receives reciprocating motion.

In connection with the linger or registering instrument d I prefer to employ a longitudinal paper-supporting bar R, which is arranged between the tapes a a and parallel therewith, and is provided with a longitudinal groove R in its top, as more clearly shown in Fig. 4 of the drawings. In order to allow the said registering instruments to be adjusted for operating on different papers having the registering-slits in different positions, I mount the bars R R laterally adjustable on cross-bars o o, secured to the frame A at opposite sides of the machine, and connect laterally adjustable the longitudinal bars c c to the cross-bars l) l) and the arms 7L 7L tothe shaft 7L', also make the rod g adjustable in length to operate the registering instrument d at a greater or less distance from the rear end of the paper. The adjustability of the said rod can be attained in various ways, one of which is illustrated in Fig. 3 of the drawings and consists of forming said rod of two. end sections having their adjacent ends inserted into a sleeve g and adj ustably fastened therein by set-screws g2.

The operation of the described registering devices is as follows: The paper is conveyed intothe machine by means of the tapes a a, and its motion is arrested by the usual end gage D, which leaves the paper lying with its central portion across the folding-rollers B Il. During this operation the registering instruments d CZ are carried to their extreme forward position and are lifted out of the path of the paper by the rods gg being pushed forward by the arms 7L h of the rock-shaft 7L. As soon as the sheet has come to rest the rods f/ g begin to move back and thereby first tilt the fingers or registering instruments CZ d, so as to canse their lower ends to depress the paper in the grooves R of the bars R and then draw saidinstru ments back, and in this movement the spurs c of the instruments d enter into the slits of the paper, which slits are opened by the aforesaid depression of the paper. In the further rearward movements of said instruments they come in contact with the rear edges of the slitted portions of the paper and draw the paper rearward to its requisite registering position. As soon as it has arrived at this position the rods q begin their forward movement and thereby lift the registering instruments (l out of engagement with the paper and release the same to be then tucked into the bite of the folding-rollers B I3 by the blade C. In order to prevent the tapes from disturbing the paper from its aforesaid registering position, the movement of the blade C is to be so timed as to cause it to come in contact with the paper the moment the paper is released from the registering instruments.

To guard against excessive downward pressure of the finger or instrument CZ upon the paper, the pivoted end of said linger is provided with a rearward extension t, to which is adjustably connected a vertical set-screw t, which by contact with the sleeve c' limits the downward movements of the finger d.

Vhat I claim as my invention isl. In a paper-foldin g machine or analogous machine provided with traveling tapes conveying paper into the machine, paper-regis tering instruments located near the receiving end of the machine and reciprocating in lines parallel with said tapes and movable to and from the plane thereof and drawing the paper back to its registering position, as set forth.

2. In a paper-folding machine or analogous machine, a registeringinstrument located adjacent to the receiving end of said machine and drawing the sheet back toward said end of the machine and into registering position by engagement of the registering instrument with the edge of the slit. made in the paper for that purpose.

3. In a machine designed to receive paper provided with slits at predetermined positions, the combination with tapes conveying the paper into the machine, of paper-supporting bars located adjacent to the receiving end of the machine and provided with longitudinal grooves in their tops and longitudinally-reciprocating registering instruments movable vertically to and from the grooves of said bars and depressing the paper in said grooves during the rearward movement of said instruments to engage the edges of the slits in the paper and thereby draw the paper rearward to its registering position.

Il. In combination with the paper-convey- IOO ing tapes, a sheet-stopping gage located at the end opposite to the receiving end of the machine, registering instruments adjacent to said receiving end of the machine and reciprocating on lines parallel with the tapes and movable vertically to and from the plane of said tapes to engage the sheet arrested by the aforesaid gage and drawing the sheet back during the rearward movement of the registering instrument and thereby carrying the sheet to its registering position, as set forth.

5. In a paper-folding machine comprising paper-folding rollers, a blade tucking the paper between the rollers, tapes delivering the paper to the rollers, a gage arresting the forward movement of the paper, longitudinal bars between the rollers and receiving end of the machine and provided with longitudinal grooves in their tops, and paper-registering instruments reciprocating in lines parallel with said bars and movable vertically to and from the grooves thereof to depress the paper therein and thereby open the slits made in the paper for that purpose, said registering instruments engaging during their rearward movement the edges of the slits in the paper and thereby drawing the paper to its registering position, as set forth.

6. In combination with the folding-rollers, tapes conveying the paper to said rollers and a sheet-arresting gage, the Combination of bars extending across the machine respectively at the receiving end thereof and adjacent to the folding-rollers, longitudinal bars secured laterally adjustable to said transverse bars, sleeves mounted movable longitudinally on said longitudinal bars, registering instruments carried on said sleeves movable to and from the plane of the tapes and provided with rearwardly-projecting spurs to enter into the slits made in the paper for that purpose and causing said delivered paper to be drawn back to its registering position by the rearwardly-traveling registering instruments, as set forth.

ln testimony whereof I have hereunto signed my name this 23d day of July, 1896.

TALBOT C. DEXTER. [L. s]

Witnesses E. P. SroUGHroN, V. E. MARSH. 

